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Date: Mon, 24 Feb 2020 20:11:54 +0100 From: Florian Westphal <fw@...len.de> To: Matteo Croce <mcroce@...hat.com> Cc: netfilter-devel@...r.kernel.org, coreteam@...filter.org, netdev@...r.kernel.org, linux-kernel@...r.kernel.org, Pablo Neira Ayuso <pablo@...filter.org>, Jozsef Kadlecsik <kadlec@...filter.org>, Florian Westphal <fw@...len.de>, "David S. Miller" <davem@...emloft.net>, Jakub Kicinski <kuba@...nel.org>, Stephen Suryaputra <ssuryaextr@...il.com> Subject: Re: [PATCH nf] netfilter: ensure rcu_read_lock() in ipv4_find_option() Matteo Croce <mcroce@...hat.com> wrote: > As in commit c543cb4a5f07 ("ipv4: ensure rcu_read_lock() in ipv4_link_failure()") > and commit 3e72dfdf8227 ("ipv4: ensure rcu_read_lock() in cipso_v4_error()"), > __ip_options_compile() must be called under rcu protection. This is not needed, all netfilter hooks run with rcu_read_lock held.
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